【标题速读】【nchem】【2023年】【1-4月】
声明：本专栏主要对生命科学领域的一些期刊文章标题进行翻译，所有内容均由本人手工整理翻译。由于本人专业为生物分析相关，其他领域如果出现翻译错误请谅解。
1.Tailored properties through controlled polymerization. Stereochemistry is a crucial yet hard to control parameter that influences the physical properties of polymers. Now, Quentin Michaudel and co-workers disclose a stereocontrolled acyclic diene metathesis (ADMET) polymerization that leverages the high stereoselectivity of a dithiolate Ru catalyst and uses specifically designed diene monomers to afford polymers with predictable compositions of cis and trans alkenes. This strategy enables the thermal properties and crystallinity of various polymers to be modulated through modification of their cis:trans alkene content. The cover shows an artistic representation of diene monomers and oligomers undergoing stereocontrolled ADMET through reaction with the Ru catalyst to form cis alkenes.
通过受控聚合定制性能。立体化学是影响聚合物物理性质的关键但难以控制的参数。现在，Quentin Michaudel 及其同事公开了一种立体控制的无环二烯复分解 (ADMET) 聚合，该聚合利用二硫醇钌催化剂的高立体选择性，并使用专门设计的二烯单体来提供具有可预测的顺式和反式烯烃组成的聚合物。这种策略使得各种聚合物的热性能和结晶度能够通过改变其顺式：反式烯烃含量来调节。封面展示了二烯单体和低聚物通过与 Ru 催化剂反应形成顺式烯烃进行立体控制 ADMET 的艺术表现。
2.Stereocontrolled acyclic diene metathesis polymerization.
立体控制的无环二烯复分解聚合。
3.Genetically encoded chemical crosslinking of RNA in vivo.
体内 RNA 的基因编码化学交联。
4.Genetically encoded chemical crosslinking of carbohydrate.
碳水化合物的基因编码化学交联。
5.A general arene C–H functionalization strategy via electron donor–acceptor complex photoactivation.
通过电子供体-受体复合物光活化的通用芳烃 C-H 功能化策略。
6.Quantum nanomagnets in on-surface metal-free porphyrin chains.
表面无金属卟啉链中的量子纳米磁体。
7.Genetically programmed cell-based synthesis of non-natural peptide and depsipeptide macrocycles.
非天然肽和缩酚肽大环化合物的基因编程细胞合成。
8.Non-complementary strand commutation as a fundamental alternative for information processing by DNA and gene regulation.
非互补链交换作为 DNA 和基因调控信息处理的基本替代方案。
9.Efficient room-temperature phosphorescence of covalent organic frameworks through covalent halogen doping.
通过共价卤素掺杂实现共价有机框架的高效室温磷光。
10.A two-residue nascent-strand steric gate controls synthesis of 2′-O-methyl- and 2′-O-(2-methoxyethyl)-RNA.
两个残基的新生链空间门控制 2'-O-甲基-和 2'-O-(2-甲氧基乙基)-RNA 的合成。
11.Targeted activation in localized protein environments via deep red photoredox catalysis.
通过深红色光氧化还原催化在局部蛋白质环境中进行靶向激活。
12.Photoswitchable gating of non-equilibrium enzymatic feedback in chemically communicating polymersome nanoreactors.
化学连通聚合物纳米反应器中非平衡酶反馈的光开关门控。
13.A soil-inspired dynamically responsive chemical system for microbial modulation.
一种受土壤启发的动态响应化学系统，用于微生物调节。
14.The gas-phase formation mechanism of iodic acid as an atmospheric aerosol source.
碘酸作为大气气溶胶源的气相形成机制。
15.On-surface synthesis of disilabenzene-bridged covalent organic frameworks.
二硅苯桥联共价有机骨架的表面合成。
16.Insights into the ribosome function from the structures of non-arrested ribosome–nascent chain complexes.
从非停滞核糖体-新生链复合物的结构洞察核糖体功能。
==================================
1.Carbon nanohoops through and through. Interlocked nanocarbons have been attracting attention on account of both their intriguing structures and potential utility, but their synthesis is challenging. Now, a team led by Ramesh Jasti has used an active-template approach to efficiently prepare such threaded compounds. A metal ion held in the central cavity of a macrocyclic precursor catalyses cross-coupling reactions to form a series of mechanically interlocked intermediates. These are then converted into fully π-conjugated species, such as the catenanes and rotaxane depicted on the cover.
碳纳米圈彻头彻尾。互锁纳米碳因其有趣的结构和潜在的实用性而引起人们的关注，但它们的合成具有挑战性。现在，由 Ramesh Jasti 领导的团队已经使用活性模板方法来有效地制备此类螺纹化合物。保持在大环前体中心空腔中的金属离子催化交叉偶联反应，形成一系列机械联锁的中间体。然后将它们转化为完全 π 共轭的物质，例如封面上描绘的索烷和轮烷。
2.Active template strategy for the preparation of π-conjugated interlocked nanocarbons.
用于制备π共轭联锁纳米碳的活性模板策略。
3.A cyclase that catalyses competing 2 + 2 and 4 + 2 cycloadditions.
一种催化竞争性 2 + 2 和 4 + 2 环加成反应的环化酶。
4.Organocatalytic asymmetric deoxygenation of sulfones to access chiral sulfinyl compounds.
砜的有机催化不对称脱氧以获得手性亚磺酰基化合物。
5.Observation of resonances in the transition state region of the F + NH3 reaction using anion photoelectron spectroscopy.
使用阴离子光电子能谱观察 F + NH3 反应过渡态区域的共振。
6.An isolable germylyne radical with a one-coordinate germanium atom.
具有单配位锗原子的可分离甲炔自由基。
7.Using enzymes to tame nitrogen-centred radicals for enantioselective hydroamination.
使用酶驯服以氮为中心的自由基以进行对映选择性氢胺化。
8.Using supramolecular machinery to engineer directional charge propagation in photoelectrochemical devices.
使用超分子机械设计光电化学器件中的定向电荷传播。
9.Using waste poly(vinyl chloride) to synthesize chloroarenes by plasticizer-mediated electro(de)chlorination.
利用废聚氯乙烯通过增塑剂介导的电（脱）氯化合成氯芳烃。
10.Supercrystal engineering of atomically precise gold nanoparticles promoted by surface dynamics.
表面动力学促进原子级精确金纳米粒子的超晶工程。
11.Adaptive insertion of a hydrophobic anchor into a poly(ethylene glycol) host for programmable surface functionalization.
将疏水锚自适应插入聚乙二醇主体中，以实现可编程表面功能化。
12.Iterative synthesis of 1,3-polyboronic esters with high stereocontrol and application to the synthesis of bahamaolide A.
高立体控制1,3-聚硼酸酯的迭代合成及其在巴哈莫内酯A合成中的应用
13.Digital micelles of encoded polymeric amphiphiles for direct sequence reading and ex vivo label-free quantification.
编码聚合两亲物的数字胶束，用于直接序列读取和离体无标记定量。
14.Inverse kinetic isotope effects in the oxygen reduction reaction at platinum single crystals.
铂单晶氧还原反应中的逆动力学同位素效应。
15.A circular polyester platform based on simple gem-disubstituted valerolactones.
基于简单宝石二取代戊内酯的圆形聚酯平台。
16.Photocatalytic nitrogen fixation under an ambient atmosphere using a porous coordination polymer with bridging dinitrogen anions.
使用具有桥联二氮阴离子的多孔配位聚合物在环境大气下进行光催化固氮。
===================================
1.Effects of enzyme entanglement. Enzymes with identical sequences of amino acids can display different levels of activity when they are encoded with different messenger RNA (mRNA) sequences; however, the reason for this has not been clear. Now, a team led by Edward P. O’Brien has shown that synonymous mutations in mRNA can alter the partitioning of proteins into long-lived soluble misfolded states, and that these different states can possess different levels of activity. The cover depicts an enzyme adopting a misfolded structure during the folding process.
酶缠结的影响。具有相同氨基酸序列的酶，当由不同的信使RNA (mRNA)序列编码时，可以表现出不同水平的活性；然而，其原因尚不清楚。现在，Edward P. O'Brien 领导的团队表明，mRNA 中的同义突变可以改变蛋白质的分配，形成长期可溶的错误折叠状态，并且这些不同的状态可以具有不同水平的活性。封面描绘了一种在折叠过程中采用错误折叠结构的酶。
2.How synonymous mutations alter enzyme structure and function over long timescales.
同义突变如何在较长时间内改变酶的结构和功能。
3.Organogel delivery vehicles for the stabilization of organolithium reagents.
用于稳定有机锂试剂的有机凝胶递送载体。
4.Hydrogen atom collisions with a semiconductor efficiently promote electrons to the conduction band.
氢原子与半导体的碰撞有效地将电子提升到导带。
5.Mechanically gated formation of donor–acceptor Stenhouse adducts enabling mechanochemical multicolour soft lithography.
供体-受体斯滕豪斯加合物的机械门控形成，实现机械化学多色软光刻。
6.Quantum interference effects elucidate triplet-pair formation dynamics in intramolecular singlet-fission molecules.
量子干涉效应阐明了分子内单线裂变分子中三重线对形成动力学。
7.φ-Aromaticity in prismatic {Bi6}-based clusters.
φ-基于棱柱 {Bi6} 的团簇中的芳香性。
8.Enantioselective synthesis of atropisomeric indoles via iron-catalysed oxidative cross-coupling.
通过铁催化的氧化交叉偶联对映选择性合成阻转异构吲哚。
9.Recyclable cyclic bio-based acrylic polymer via pairwise monomer enchainment by a trifunctional Lewis pair.
可回收的环状生物基丙烯酸聚合物，通过三官能路易斯对成对单体连接。
10.Photoswitching neutral homoaromatic hydrocarbons.
光开关中性同芳烃。
11.meta-Selective C–H arylation of phenols via regiodiversion of electrophilic aromatic substitution.
通过亲电芳香取代的区域转移对苯酚进行元选择性 C-H 芳基化。
12.Cu-catalysed enantioselective radical heteroatomic S–O cross-coupling.
Cu催化的对映选择性自由基杂原子S-O交叉偶联。
13.Enantioselective fullerene functionalization through stereochemical information transfer from a self-assembled cage.
通过自组装笼的立体化学信息转移进行对映选择性富勒烯功能化。
14.Dimeric and trimeric catenation of giant chiral [8 + 12] imine cubes driven by weak supramolecular interactions.
由弱超分子相互作用驱动的巨型手性[8 + 12]亚胺立方体的二聚和三聚连接。
15.A synergistic Rh(I)/organoboron-catalysed site-selective carbohydrate functionalization that involves multiple stereocontrol.
协同 Rh(I)/有机硼催化的位点选择性碳水化合物功能化，涉及多重立体控制。
=================================================
1.Cooperative components. Many biological nanomachines are assembled from multiple components, but the functional advantages of nanosystems composed of multiple self-assembling molecules compared with those formed from just one component are not well understood. Now, Dominic Lauzon and Alexis Vallée-Bélisle use a DNA-based model system to provide insight into the functionalities that emerge when a nanostructure assembles from multiple components. The cover depicts the programmable assembly of trimeric nanosystems in an anti-cooperative and cooperative manner, and with control over the time-dependence of formation.
合作组件。许多生物纳米机器由多个组件组装而成，但与仅由一个组件形成的纳米系统相比，由多个自组装分子组成的纳米系统的功能优势尚不清楚。现在，Dominic Lauzon 和 Alexis Vallée-Bélisle 使用基于 DNA 的模型系统来深入了解纳米结构由多个组件组装而成时出现的功能。封面描绘了三聚体纳米系统以反合作和合作方式的可编程组装，并控制形成的时间依赖性。
2.Nanomachines built from multiple components can have functional advantages.
由多个组件构建的纳米机器具有功能优势。
3.Serial rotation electron diffraction for rapid phase analysis to accelerate materials development.
串行旋转电子衍射用于快速相分析，以加速材料开发。
4.Functional advantages of building nanosystems using multiple molecular components.
使用多个分子成分构建纳米系统的功能优势。
5.Janus-type emission from a cyclometalated iron(III) complex.
来自环金属化铁 (III) 配合物的 Janus 型发射。
6.Plasmonic visible–near infrared photothermal activation of olefin metathesis enabling photoresponsive materials.
烯烃复分解的等离子体可见光-近红外光热活化可实现光响应材料。
7.High-throughput phase elucidation of polycrystalline materials using serial rotation electron diffraction.
使用串行旋转电子衍射对多晶材料进行高通量相解析。
8.Structural resolution of a small organic molecule by serial X-ray free-electron laser and electron crystallography.
通过串行 X 射线自由电子激光和电子晶体学对有机小分子进行结构分辨率。
9.Metalloradical approach for concurrent control in intermolecular radical allylic C−H amination.
用于同时控制分子间自由基烯丙基 C−H 胺化的金属自由基方法。
10.Nanoparticle stereochemistry-dependent endocytic processing improves in vivo mRNA delivery.
纳米颗粒立体化学依赖性内吞加工可改善体内 mRNA 递送。
11.Rupturing aromaticity by periphery overcrowding.
外围过度拥挤破坏了芳香性。
12.An NmrA-like enzyme-catalysed redox-mediated Diels–Alder cycloaddition with anti-selectivity.
一种类似 NmrA 的酶催化氧化还原介导的具有反选择性的 Diels-Alder 环加成反应。
13.A catalytic alkene insertion approach to bicyclo[2.1.1]hexane bioisosteres.
双环[2.1.1]己烷生物等排体的催化烯烃插入方法。
14.Reversible transformations between the non-porous phases of a flexible coordination network enabled by transient porosity.
由瞬态孔隙率实现的灵活配位网络的无孔相之间的可逆转变。
15.Alkyl sulfinates as cross-coupling partners for programmable and stereospecific installation of C(sp3) bioisosteres.
烷基亚磺酸盐作为 C(sp3) 生物等排体的可编程和立体定向安装的交叉偶联伙伴。
16.Unusual peptide-binding proteins guide pyrroloindoline alkaloid formation in crocagin biosynthesis.
不寻常的肽结合蛋白指导鳄鱼素生物合成中吡咯并吲哚啉生物碱的形成。
17.End-of-life upcycling of polyurethanes using a room temperature, mechanism-based degradation.
使用室温、基于机制的降解对聚氨酯进行报废升级回收。
18.Protein nanopore reveals the renin–angiotensin system crosstalk with single-amino-acid resolution.
蛋白质纳米孔以单氨基酸分辨率揭示肾素-血管紧张素系统串扰。
